Determine the solutions to the following systems of the linear equations.

Answer:

Step-by-step explanation:

pls mark me as brainlist

Answer:

you can mark them brainliest, now c:

Step-by-step explanation:

Answer:

14 weeks

Step-by-step explanation:

He earns $3.50 a week, so he would need to save up for 14 weeks to get enough money

Hope this helped!

Stay safe! <3

Answer:

14 weeks

Step-by-step explanation:

Hello kenzieshirley, this question can be easily solved by setting up and equation.

To start we can say that in total Sam will be saving $3.50 every week

$1.50 + $2.50 = $3.50

Then we can set up a linear equation:

y = 3.50x

where y = total amount saved, x = weeks

then all we have to do is substitute $49 for y, as we want to know how many weeks, x, it will take to save up for Sam's phone.

49 = 3.5x

x=14

It will take Sam 14 weeks to save up $49

Hope this helps!

-HM

Answer:

The answer is 938. ;}

Step-by-step explanation:

Answer:

The answer is 938

Step-by-step explanation:

i hope it Helped!! <3

Answer:

128

Step-by-step explanation:

Answer:

720 miles

Step-by-step explanation:

on the table you can see that it takes 1 hour to drive 60 miles. every hour you drive 60 more miles. so, 60mi x 12h = 720mi

i hope this helps :)

Answer:

D

Step-by-step explanation:

1T=2000lb

9000lb= 4.5T

Answer:

it is d my friend

Answer:

A. biased; convenience sample

Step-by-step explanation:

Alana is reading the first 17 pages, which are what is most conveniently available.

The sample of the assigned reading likely to be biased and convenience sample.

probability is the ratio of the number of favorable outcomes and the total number of possible outcomes. The chance that a particular event (or set of events) will occur expressed on a linear scale from 0 (impossibility) to 1 (certainty), also expressed as a percentage between 0 and 100%.

Given:

Alana skimmed the first 17 pages from each of the books

assigned in her literature class. Each assigned book has an equal number of pages.

According to given question we have

A biased estimator is one that deviates from the true population value. A biased sample can still be useful if the nature of the bias and how much of a bias exists is known.

An unbiased estimator is when a value from a sample is the same as the actual value of a population parameter.

The sample is not chosen at random, the inherent bias in convenience sampling means that the sample is unlikely to be representative of the population being studied. This undermines your ability to make generalizations from your sample to the population you are studying.

Therefore, the sample of the assigned reading likely to be biased and convenience sample.

Learn more details about probability here:

https://brainly.com/question/11234923

#SPJ2

Answer:

y=-1/6x

Step-by-step explanation:

To find the answer you can just look at 2 points on the graph and whichever one comes first is (y1,x1) and the next pair is (y2,x2). So to find it we can use (0,0) automatically because the line is crossing through it. We can also use (600,-100) as the second point becasue it is the next farthest away and when we plug the numbers into the slope equation(y2-y1/x2-x1) we get -100-0/600-0 which when simplified is -100/600 or -1/6 so that would be the m in slope-intercept form (y=mx+b) and when you get everything you can find the equation y=-1/6x

Hope this helped!

Answer:

your answer is, A Population: soccer team, Sample: starting eleven player.

Step-by-step explanation:

I just took the test.

The population and the sample in the situation below is a Soccer team and starting eleven players respectively.

The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment. In a random experiment, the outcomes, also known as sample points, are mutually exclusive.

Given, The coach wants to know which uniform the soccer team wants to wear, but he only asks the starting eleven players.

Since A population is an entire group that you want to draw conclusions about. A sample is a specific group that you will collect data from. The size of the sample is always less than the total size of the population.

and The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment.

Thus in our case,

Population: soccer team

Sample: starting eleven players

Learn more about sample space here:

brainly.com/question/30206035

#SPJ3

Answer:

$49.6

Step-by-step explanation:

Given that :

Wholesale price, p = $32

Markup percentage = 55%

Selling price = wholesale price * ( 1 + Markup percentage)

Selling price = $32(1 + 0.55)

Selling price = $32(1.55)

Selling price = $49.6

Answer:

Step-by-step explanation:

The Equation is m/w=5 And it will be 17 weeks when he has 15 remaining on his card

Answer:

D is the right answer

Step-by-step explanation:

Y= 2, X=2

According to D,

2= 2*4+8-2

2=8-8+2

2=2

Answer:

The resultant speed = 181.3 mph

The final direction = 38.7° northeast.

Step-by-step explanation:

We need to find the component in the x-direction and in the y-direction of the speed:

For the plane:

[tex] v_{p_{x}} = 200cos(45) = 141.42 [/tex]

[tex] v_{p_{y}} = 200sin(45) = 141.42 [/tex]

For the wind we have:

[tex] v_{w_{x}} = -28 [/tex]

[tex] v_{w_{y}} = 0 [/tex]

Now, the total speed in the x-direction and  in the y-direction is:

[tex] V_{x} = v_{p_{x}} + v_{w_{x}} = 141.42 - 28 = 113.42 [/tex]

[tex] V_{y} = v_{p_{y}} + v_{w_{y}} = 141.42 [/tex]

Hence, the resultant speed is:

[tex] V = \sqrt{V_{x}^{2} + V_{y}^{2}} = \sqrt{(113.42)^{2} + (141.42)^{2}} = 181.3 mph [/tex]

Finally, the direction of the plane is:

[tex] tan(\theta) = \frac{V_{y}}{V_{x}} = \frac{141.42}{113.42} = 1.25 [/tex]

[tex] \theta = 51.3 ^{\circ} [/tex]

[tex] \theta = 90 - 51.3 = 38.7 ^{\circ} [/tex]

The plane is moving at 38.7° northeast.

I hope it helps you!

Answer:

0.50

Step-by-step explanation:

Answer:

x² - 4

Step-by-step explanation:

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

ax² + bx + c

Expand using FOIL

x · x + x · 2 - 2x - 2 · 2

Simplify

x² - 4

good luck, i hope this helps :)

Answer:

I THINK it is A

Step-by-step explanation:

I did this question before

Answer:

(x + 3) + (x + 3) + (x + 3) + (x + 3)

Step-by-step explanation:

Repeated addition:

4(x + 3), means that (x + 3) is added by itself 4 times.

So:

(x + 3) + (x + 3) + (x + 3) + (x + 3)

Step-by-step explanation:

the answer is 152 thats what i got

Answer:

Step-by-step explanation:

2 is the y-intercept and the slope is one

The population of the study is club members who were asked whether they preferred a new sauna or new steam room

Answer:

36, 18, 12, 9, 6, 4, 3, 2, and 1